Disposal Of Weapon Plutonium

This NATO Advanced Research Workshop on Disposal of Weapons Plutonium is a follow-up event to two preceding workshops, each dealing with a special subject within the overall disarmament issue: "Disposition of Weapon Plutonium", sponsored by the NATO Science Committee. The first workshop of this series was held at the Royal Institute of International Affairs in London on 24-25 January 1994, entitled "Managing the Plutonium Surplus, Applications, and Options". Its over all goal was to clarify the current situation with respect to pluto nium characteristics and availability, the technical options for use or disposal, and their main technical, environmental, and economic constraints. In the immediate term, plutonium recovered from dismantled nuclear warheads will have to be stored securely, and under international safeguards if possible. In the intermediate term, the principal alter natives for disposition of this plutonium are: irradiation in mixed oxide (MOX) fuel assemblies in existing commercial light-water reac tors or in specially adapted light-water reactors capable of operation with full cores of MOX fuel .and irradiation in future fast reactors. Another option is to blend plutonium with high-level waste as it is vitrified for final disposal in a geologic repository. In both cases, the high radioactivity of the resulting products provides "self shielding" and prevents separation of plutonium without already developed and available sophisticated technology. The so-called "spent fuel standard" as an effective protection barrier is - quired in either case.

First published in 1997, this volume observes that of all the materials, systems and facilities that designed and operated nuclear weapons, the most readily available assets for reuse are often identified as the highly enriched uranium (HEU) and plutonium from warheads. However, proliferation concerns the reuse of much of this material unlikely. This book explores the economic issues surrounding the major expenditures facing the US as it attempts to dispose of weapon-grade nuclear materials in a proliferation-resistant manner. The book discusses the economic values of plutonium and HEU, the economic nature of the nuclear industry, reprocessing and operations costs, the economics of ‘burning’ plutonium to generate electrical power, the economics of down-blending and ‘burning’ HEU, military conversion as a rationale for selecting plutonium disposition options, the economics of transmutation, and the economics of other proposals ranging from monitored surface storage to vitrification. The book concludes by identifying the major cost drivers affecting all disposition options.

Within the next decade, many thousands of U.S. and Russian nuclear weapons are slated to be retired as a result of nuclear arms reduction treaties and unilateral pledges. A hundred tons or more of plutonium and tons of highly enriched uranium will no longer be needed. The management and disposition of these fissile materials, the essential ingredients of nuclear weapons, pose urgent challenges for international security. This book offers recommendations for all phases of the problem, from dismantlement of excess warheads, through intermediate storage of the fissle materials they contain, to ultimate disposition of the plutonium.

Disposal of Surplus Plutonium at the Waste Isolation Pilot Plant: Interim Report evaluates the general viability of the U.S. Department of Energy's National Nuclear Security Administration's (DOE-NNSA's) conceptual plans for disposing of 34 metric tons (MT) of surplus plutonium in the Waste Isolation Pilot Plant (WIPP), a deep geologic repository near Carlsbad, New Mexico. This report evaluates DOE-NNSA's plans to ship, receive, and emplace surplus plutonium in WIPP and its understanding of the impacts of these plans on WIPP and WIPP-bound waste streams. This report, the first of two to be issued during this study, provides a preliminary assessment of the general viability of DOE-NNSA's conceptual plans, focusing on some of the barriers to their implementation.

Experts have been investigating how to use, control, or dispose of nuclear materials -- plutonium & highly enriched uranium -- that are recovered from dismantled warheads & could pose long-term environmental, safety, & health risks. This report analyzes the current programs & policies & evaluates the prospects for future success. Policy initiatives were presented: a national dismantlement policy; strengthening Dept. of Energy management; nuclear materials storage, & disposition; a new materials management organization; information access; & cooperation with Russia.

The United States has pledged to dispose of 34 metric tons of surplus, weapons-grade plutonium. The current U.S. approach relies on disposing of the plutonium by irradiating it as MOX fuel-a mixture of plutonium and uranium oxides-in modified commercial nuclear reactors. Due to a significant rise in cost, DOE recently proposed terminating the MOX approach in favor of the dilute and dispose approach, which DOE stated may be less expensive. Under this approach, plutonium would be diluted with inert material and then disposed of in a geologic repository. GAO was asked to review DOE's planning for both the MOX and dilute and dispose approaches. This report examines: (1) the extent to which DOE's revised cost estimates for completing the construction of the MOX facility and for completing the overall Plutonium Disposition Program met best practices, (2) the status of NNSA's development of a life-cycle cost estimate for the dilute and dispose approach, and (3) the extent to which DOE has sufficient disposal space and statutory capacity at WIPP to dispose of all defense TRU waste, including waste from the dilute and dispose approach. GAO reviewed documents and interviewed DOE and NNSA officials, including officials from five major waste-generating sites.